Air-brake bleeding-valve.



N. 834,837. PATENTED OCT. 30, 1906.

H.- A. MINBR. l AIRBRAKE BLBBDING VALVE.

APPLICATION FILED JUNI; 12,1906.

nl: vonnis Flu-les co., WASHINGTON. a c.

. UNITED y STATES PATENT OFFICE.

HERBERT MINER, LOGANSPORT, INDIANA,ASSIGNOR OF .ONE-HALF TO CHARLES P. McCAFF REY, OF LOGANSPORT, INDIANA.'

AIR-BRAKE BLEEDING-VALVE.

Patented Oct. 30, 1906.

App'ucaion and June 12,1906. semi No. 321,417.

-To a/ZZ whom it may concern:

Be it known that I, HERBERT A. MINER, a citizen of the United States, residing at Logansport, in the county of Cass and State of Indiana, have invented anew and useful Air- Brake Bleeding-Valve, of which the following is a specification. y A

This invention relates to improvements in air-brake apparatus, and relates more particularly to a bleeding or releasing valve which is capable of. being operated from a plurality of more or less remote points.

The objects 0f the invention are to sim- .plify and improve the construction of this class of devices and to facilitate their operation.

With these objects in view and others, as will appear as the nature of the invention is better understood', the invention comprises Vthe various novel features of construction and larrangement of parts hereinafter set forth, and defined with particularity in the claims appended thereto.

In the accompanying drawings, which illustrate one of the embodiments of rthe inven tion, Figure 1 is a perspective view of the valve. Fig. 2 is a central longitudinal section. Fig. 3 is a transverse section online .3 3 in Fig.. 2.

lare indicated throughout by similar characters of reference. u v

Referring to the drawings, 1 designates the valve-casing, .which may be and preferably -is vcylindrical Vin shape and externally and 'ceive, respectively, a cap 2 and nipple 3, the latter serving to attach the valve to the auxiliary reservoir ofthe air-brake system or .to `any. other suitable devicevthat is to be controlled by the valve. As shown in Fig. 2,

' the-valve is provided with a passage or.' port 4 adjacent its nipple end, that is controlled yby the valve 5. Extending radially from the -passage 4, which latter extends axiallyof the cylinder, is avent passage or-outlet .6. The

valve 5 vis provided with a stem 7, ,which 1s guided in the bore or cylindrical passageS of the guide 9, the guide being supported in the cylinder v.by the webs 10,. Ther-valve, 5 -comprises a conical nut 11, which. S bored and tapped to screw on the threaded end of the valve-stem and is .adapted toengage .a

A adapted to be tilted on the same. lof the levers 14 are provided witheyes 17, by

Corresponding parts in the l several figures conical seat 12, arranged at the nipple end of the cylinder, a frusto-conical gasket .of 55 rubber or other material being arranged on the valve to face the samefwhere it engages the seat.

The valve is adapted to be actuated by va tripod or stool-like actuator. prises a plurality of legs or levers 14, connected together at their inner ends by the cross-bar portions 15. In the present illustration three levers are shown arranged lat ninety degrees apart and extendingthrough correspondinglyfarranged slots 16 in the wall of the casing 1 near the cap 2 thereof. -These slots are of sufficient length to permit the 1evers to be moved back and forth therein to their full extent.

abutment for the actuator, and the latter is which the actuator is attached to a plurality of rods or other connecting means (not shownlthat may be arranged so that the valve can be operated from the sides and top of the car.

To connect the the stem 7 of the toward the end of the casing 1 and is provided with a hemispherical enlargement 18, that engages ina correspondingly-.shaped socket in the cross-bars 1,5 of the levers.. Thisenactuator with the valve.,

largementv permits of the actuator being tilt- 8 5 ed in any direction .about the same as a center. The enlargement also serves as an abutment for receiving one end of the compression-spring 20. This spring is arranged around the valve-stem and abuts at the vend 9o opposite from the enlargement on the upper end of the valve-stem guide 9., The spring isnormally under sufficient tension to maintain the valve tightly on the seat, so as to prevent leakage.

leakage, the end of the valve exposed to the ressure within the auxiliary reservoir of the rake system 1s of substantial d1rnens1o'ns., so

that said pressure acting `on the valve aids materially in keeping Since the actuator abuts.. the cap 2 and the valve-stem engages withfthe actuator, the set; of the cap 2 must beso determined as to permit the valve .to seat. This can be readily done, since the cap is adjustable on the `cylinder by means of its .screwing thereon.

This com- 6o The cap 2 serves as an 7o The ends p latter extends upwardly 8o To assist in preventing 9S the latter seated. roo

When the parts are in the positions shown by ull lines, the valve is closed. When it is the point indicated at 23.

desired to open the valve, any one ofthe rods connected with the actuator may be moved, the rods having such a movement as to tilt the lever connected'with the rod that the operator is actuating in a downward direction. Assuming that the right-hand lever in Fig. 2 has been moved to open the valve, the parts will then occupy the positions shown by dotted lines. It will be noted that the left-hand end of the bar to which the lever is attached serves as a ulcrum on which the whole actuator moves, the ulcrum being indicated at 22. Had the left-hand lever been moved by the actuating-rod attached to it the fulcrum of the actuator would be at If the centrallyprojecting lever in Fig. 3 were actuated, the fulcrum of the actuator would be at the oint designated 24, the cross-bar of the ever being extended to the opposite side of the enlargement 18, so as to have the fulcrumpoint at a lsuitable distance from the latter to afford sufiicient leverage. It will thus be seen that the actuator operates as a wabbler that can be actuated from a number of diiierent points to impart a single movementviz., the longitudinal movement of the valvestem.

I have described the invention as a bleeding or releasing valve to be used in connection with an air-brake system but it is obvious that the same is applicable to other cases Where it is desired to control fluid-pressure from one or more suitably remote points.

Furthermore, I have described the principle of operation of the invention, together with the apparatus which I now consider to be the best embodiment thereof; but I desire to have it understood that the apparatus shown is merely illustrative and that various changes may be made when desired as are within the scope of the invention.

What is claimed isl. The combination of a casing, therein, a valve controlling the port, and a tiltable member mounted partly within and partly without the casing to actuate the valve in an axial direction and adapted to be operated by independent actuating means.

2. The combination of a casing, a port therein, an actuator within the casing which is mounted for a wabbling movement and having members extending loosely through the wall of the casing, a valve for the p controlled by the actuator, an adjustable abutment for the actuator to fulcrum on, and means tending to hold the valve on its seat and the actuator on the abutment.

3. The combination with a casing, a port therein, a valve controlling the port, a stem for the valve, a single-piece actuator mounted for a wabbling movement which engages the a port stem and is provided with a number of radially-disposed levers, a stationary member on which the actuator tilts at a number of' different points, and means for guiding the movement of the valve-stein.

4. The combination of a casing, a port therein, a valve controlling the port, an actuator engaging the valve and mounted for a wabbling movement, and means on which the actuator fulcrums.

5. The combination of a casing, a port therein, a valve controlling the port, a valvestem, a tiltable actuator within the casing engaging the stem for opening the valve and having arms projecting out of the casing, an abutment on which the actuator tilts, and a spring arranged to close the valve and maintain the actuator in engagement with the abutment.

6. The combination of a casing, a port therein, a valve controlling the port, avalvestem, a tiltable actuator engaging the stem for opening the valve, a removable cap closing one end of the casing and disposed over thev actuator to form an abutment on which the actuator tilts, and a spring arranged on the valve-stem to normally maintain the valve closed and the actuator against the abutment.

7. The combination of a casing, a port therein, a valve controlling the port, a valvestem, a tiltable actuator, a universal connection between the stem and actuator, an abutment for receiving the thrust of the actuator,

and a spring arranged to return the actuator and valve.

8. The combination of a casing, a port therein, a valve controlling the port, a valvestem provided with an enlargement, a guide for the stem, a spring on the stem confined between the enlargement and guide, an actuator in the casing which engages the enlargement, and an adjustable cap on the casing abutting the actuator.

9. The combination of a casing provided with a plurality of slots, an actuator mounted in the casing with members extending through the slots for engagement with independent controlling mechanisms, a port in the casing, a valve controlling the port, and means for 'connecting the actuator with the valve.

l0. The combination of a casing provided with a plurality of slots, levers extending through the slots and rigidly connected, a cap threaded on the casing to serve as an abutment for the levers, a valve in the casing, and means for-actuating the valve by any of the levers.

1l. The combination of a support provided with an abutment, an actuator having a plurality of differently-located iulcrumpoints which are arranged to permit of a wabbling movement, a member arranged to be moved by the actuator, and a yield- IOO IOS

'IIC

ing means for holding the actuator in enator, and an abutment on the casing which gagement with the abutment and permitting engages the actuator and operates through it to tilt on any oi its Julcrums. t the Same to hold the spring under tension.

12. The combination of a casing, a longi- In testimony that I claim the foregoing as I 5 tudinally-movable member having a .termy own I have hereto afliXed my signature nilinal eilargerient, a guide on the csing for in the presence o-two Witnesses.

t e sai mem er, an actuator or t e member which engages the enlargement thereof, a HERBERT A MINER spring arranged Withl its ends abutting the Witnesses:

guide and enlargement to operatethrough the OSCAR B. CONANT,

member to opposethe movement of the actu- DUDLEY P. SWIGART. 

